Malicious PDF — malware analysis report

Static analysis result for SHA-256 49fed7c0aa3c16a1…

MALICIOUS

PDF

186.9 KB Created: 2015-08-05 13:31:14 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 0999a1d1fb8cb8290670b95adebe0702 SHA-1: e8591c0b92a336743489f9cb0bd33fef958e98e8 SHA-256: 49fed7c0aa3c16a14be5c65e2d72d5ec5d6d5474aa94dc26fa9ac12374b6e8f2
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a link to a known malicious redirector, botcraftman.ru. This indicates a phishing or redirection attempt. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted, but the presence of the malicious URL is sufficient evidence for the attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9982

Heuristics 2

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://botcraftman.ru/?lip&keyword=%D0%B4%D0%BE%D0%BB%D0%B6%D0%BD%D0%BE%D1%81%D1%82%D0%BD%D0%B0%D1%8F+%D0%B8%D0%BD%D1%81%D1%82%D1%80%D1%83%D0%BA%D1%86%D0%B8%D1%8F+%D0%BF%D0%B0%D1%80%D0%B8%D0%BA%D0%BC%D0%B0%D1%85%D0%B5%D1%80%D0%B0+%D1%83%D0%BD%D0%B8%D0%B2%D0%B5%D1%80%D1%81%D0%B0%D0%BB%D0%B0&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/6//4304/4304465_igra_s_tablicey_umnozheniya.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4304/4304462_rukovodstvo_r_22200605_skachat.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4304/4304459_koduy_dlya_kanalov_sputnikovogo.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024940.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24940 3556 bytes
font_01_sfnt_off000256c3.bin
8cab0f920e96219462cf4134ce3c116ebe84230996a1c806778416c8c114dbc5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x256C3 14036 bytes
font_02_sfnt_off00028320.bin
b4b78b71441c848d9cb267a1fe8d0da42235ee9c67d6c7dccc3c5bcd076ef03f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x28320 14532 bytes
font_03_sfnt_off0002ae0f.bin
ba4f262eff09e98522238377ef5bd8cd6d8dd68ebd37b2c74941bfe93968a501		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AE0F 6880 bytes
font_04_sfnt_off0002c1f8.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C1F8 6084 bytes
font_05_sfnt_off0002d18d.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D18D 3752 bytes

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